122777402 has 8 divisors (see below), whose sum is σ = 200908512. Its totient is φ = 55807900.

The previous prime is 122777399. The next prime is 122777443. The reversal of 122777402 is 204777221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2790374 + ... + 2790417.

It is an arithmetic number, because the mean of its divisors is an integer number (25113564).

Almost surely, 2^122777402 is an apocalyptic number.

122777402 is a deficient number, since it is larger than the sum of its proper divisors (78131110).

122777402 is a wasteful number, since it uses less digits than its factorization.

122777402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5580804.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 122777402 is about 11080.4964690216. The cubic root of 122777402 is about 497.0187961751.

The spelling of 122777402 in words is "one hundred twenty-two million, seven hundred seventy-seven thousand, four hundred two".